The nice thing about floss or picks is that they're incredibly portable, discrete, cheap and effective. A lifetime supply of floss won't cost you anything like $900 either. Now if flossing turned out not to be sufficient for oral health then I'd be interested, but as is flossing is more than enough! I'm also a strong proponent of picking/flossing after any time you eat, ideally followed by some xylitol gum.
My dentist says I'm one of only three people she's ever seen who's gums never bleed no matter what she does to them, one of those two is my mother who taught me those habits, and the third is an old Greek fellow who picks as well.
It's an oral bidet! Looks like fun, bet it feels great.
US$899 buys a lot of floss.
As with a bidet, slightly more water use and maybe less material resource consumption (not sure of the +/- of electricity consumption and storage in that equation).
My dentist says I'm one of only three people she's ever seen who's gums never bleed no matter what she does to them, one of those two is my mother who taught me those habits, and the third is an old Greek fellow who picks as well.